Exotic Electronic Property of Phosphorene Nanoribbons Driven by External Electric Field

TL;DR

This study uses advanced computational methods to explore how external electric fields induce diverse electronic phase transitions in phosphorene nanoribbons, revealing potential for tunable nanoelectronic applications.

Contribution

It demonstrates that external electric fields can induce exotic electronic transitions in phosphorene nanoribbons, a novel finding in the context of 2D material nanoelectronics.

Findings

Edge-localized polarized states in phosphorene nanoribbons.

Electric fields induce transitions from semiconducting to metallic states.

Observation of half-metallic behavior under certain conditions.

Abstract

By the means of screened exchange density functional theory, we find that the phosphorene nanoribbons with bare zigzag edges that undergo Peierls distortion is a antiferromagnetic semiconductor in which the polarized states are mainly localized at the edges. Under application of external electric fields, the phosphorene nanoribbons present exotic electronic structure transitions including semiconducting, half-metallic, and metallic states.